Finding the Fourth Proportional to 10,838.86, 16,248.56 and 3,911.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,838.86 : 16,248.56 = 3,911.74 : x
2. Step 2: Convert to fraction form
   10,838.86/16,248.56 = 3,911.74/x
3. Step 3: Cross multiply
   10,838.86x = 16,248.56 × 3,911.74
4. Step 4: Simplify right side
   10,838.86x = 63,560,142.09
5. Step 5: Solve for x
   x = 63,560,142.09/10,838.86
6. Step 6: Final answer
   x = 5,864.10